Southampton is a community on the shores of Lake Huron in Bruce County, Ontario, Canada. It is close to Port Elgin and is located at the mouth of the Saugeen River in the Saugeen Ojibway Nation Territory. The size of the town is 6.44 square kilometres. The permanent population in 2016 was 3,678, but the summer population is higher since cottagers and campers spend vacation time in the area.